CN117432465A

CN117432465A - Coal mine gangue filling combined tamping mechanism

Info

Publication number: CN117432465A
Application number: CN202311386723.5A
Authority: CN
Inventors: 王晓东; 许晨; 武博强; 朱世彬; 刘卫卫; 韩乐; 张跃宏
Original assignee: XI'AN RESEARCH INSTITUTE OF CHINA COAL RESEARCH INSTITUTE; China Coal Research Institute CCRI
Current assignee: XI'AN RESEARCH INSTITUTE OF CHINA COAL RESEARCH INSTITUTE; China Coal Research Institute CCRI
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-01-23

Abstract

The invention relates to a coal mine gangue filling combined tamping mechanism, which comprises a plurality of tamping power devices, a tamping assembly, a vibrating assembly and an auxiliary tamping assembly; and (3) selecting a corresponding number of tamping power devices according to the size of the tamping region, so as to ensure that all positions needing to be filled in the tamping region can be filled with gangue. The compaction power device is used for providing power for the compaction assembly, the compaction assembly is driven to move in the horizontal direction and the vertical direction, meanwhile, the compaction assembly is controlled by the auxiliary compaction assembly to move left and right, and when filling, all parts of a compaction area can be compacted by gangue, so that the problems of uneven filling area and uneven stress of the gangue are avoided. In addition, the vibrating device is added, so that the compacting component vibrates during working, the compactness during filling of the gangue is improved, the gap between the gangue is reduced, and the beauty and the safety of the tamped area after the gangue is filled are ensured.

Description

Coal mine gangue filling combined tamping mechanism

Technical Field

The invention belongs to the field of coal mine waste filling, and particularly relates to a coal mine waste filling combined tamping mechanism.

Background

Along with the increase of the demand of people for coal mine resources, the coal mine resources are increasingly exploited, so that a large amount of gangue is accumulated after the exploitation of more and more mines, the exploited mines form a large-area goaf, the ground of the goaf collapses in a large area, the damage is brought to the production and life of people, and the goaf is required to be filled with the gangue.

Traditional colliery waste filling equipment among the prior art simple structure and function are comparatively single, can only carry out the simple tamping to colliery waste, because the size of colliery waste differs, has the space between the in-process coal gangue that tamps to make the in-process tamp to colliery waste compact inadequately. In addition, when the coal mine gangue is tamped, only the coal mine gangue in a fixed area can be tamped, so that the gangue is extruded in the tamping process, the tamping area is not smooth enough, the stress of the tamped coal mine gangue filling area is uneven, and the potential safety hazard of later collapse exists.

Disclosure of Invention

The invention aims to provide a coal mine waste filling combined tamping mechanism, which aims to solve the problems that the existing coal mine waste filling equipment is not tight enough to fill coal mine waste, and only can tamp the coal mine waste in a fixed area, so that the tamped area is uneven and stressed unevenly, and potential safety hazards are generated.

In order to solve the technical problems, the invention adopts the following technical scheme:

the coal mine waste filling combined tamping mechanism is characterized by comprising a plurality of tamping power devices, a tamping assembly, a vibrating assembly and an auxiliary tamping assembly; the tamping power devices are arranged in parallel, a group of compacting assemblies are correspondingly arranged in front of each tamping power device, and all the compacting assemblies face the same direction.

The tamping power device is used for:

the compacting component is driven to move in the horizontal direction and the vertical direction.

The compaction assembly is used for:

the gangue is compacted by moving in the horizontal and vertical directions under the drive of the tamping power device, so that the gangue is uniformly filled into the goaf.

The vibration assembly is used for:

the compaction assembly is driven to vibrate through self vibration.

The auxiliary compaction assembly is used for:

the packing coverage area of the compaction assembly is increased.

The compacting assembly is moved left and right.

The invention also has the following characteristics:

the number of the tamping power devices is 2-3.

Further, the tamping power device comprises a mounting frame, wherein the mounting frame comprises a rectangular top plate and four side plates, and the four side plates are respectively arranged at four corners of the top plate.

The lower surface of the top plate is connected with one end of a hydraulic telescopic rod, the other end of the hydraulic telescopic rod is connected with the top of a hydraulic pusher, an output shaft of the hydraulic pusher is connected with a fixed plate, and the compacting assembly is connected to the front of the tamping power device through the fixed plate.

Further, the hydraulic telescopic rod is obliquely arranged, and two ends of the hydraulic telescopic rod are respectively connected with the top plate and the hydraulic pusher in a rotating way.

Limiting rods capable of rotating along the circumferential direction of the central shaft of the hydraulic pusher are rotatably connected to the left and right side walls of the rear part of the hydraulic pusher, and first sliding grooves are formed in corresponding positions of the inner sides of two side plates at the rear part of the tamping power device; the limiting rods can be respectively clamped into the corresponding first sliding grooves and slide along the first sliding grooves in the vertical direction.

Further, the roof lower surface fixedly connected with first supporting seat of mounting bracket, the inside rotation of first supporting seat is connected with first articulated cover, hydraulic telescoping rod one end rotate and connect in first articulated cover inside.

The hydraulic pusher top fixedly connected with second supporting seat, the second supporting seat rotates and is connected with the second articulated cover, the hydraulic telescoping rod other end rotate and connect in the inside of second articulated cover.

Further, the compacting assembly includes a pusher plate coupled to the fixed plate.

The left side and the right side of the pushing plate are provided with mounting holes which are penetrated horizontally, and a connecting rod is slidably arranged in each mounting hole; the compaction assembly further comprises a compaction plate, one end of the connecting rod extends out of the corresponding mounting hole, and the other end of the connecting rod is fixedly connected with the compaction plate; each connecting rod is sleeved with a connecting spring, and the connecting springs are positioned between the pushing plate and the compacting plate.

Further, the vibration assembly comprises at least one vibrator, the vibrator is arranged on the rear wall of the compacting plate, and the opening and closing of the vibrator are controlled through a vibration switch.

Further, the auxiliary compaction assembly includes a sliding plate.

The front wall of the compacting plate is provided with a second sliding groove, and the sliding plate is clamped in the second sliding groove and can slide in the vertical direction along the second sliding groove;

the rear wall of the pushing plate is fixedly connected with a connecting plate, and the top end of the connecting plate is fixedly connected with a vertically arranged inclined side plate; the top of the sliding plate is fixedly connected with a horizontal lifting plate; the inclined side plate and the lifting plate are positioned in the same vertical plane; the hypotenuse of the hypotenuse plate faces the lifting plate;

the bottom end of the bevel plate is lower than the bottom end of the lifting plate, and the top end of the bevel plate is higher than the top end of the lifting plate; the shortest distance between the bevel edge plate and the lifting plate is smaller than the distance between the pushing plate and the compacting plate.

Further, the auxiliary compaction assembly also comprises a mounting groove arranged on the upper wall of the fixed plate; the pushing plate enters the mounting groove and contacts the bottom of the mounting groove, and the left side and the right side of the pushing plate are fixedly connected with the inner walls of the left side and the right side of the mounting groove through the compression spring and the extension spring respectively; the pushing plate can horizontally move in the mounting groove;

a limiting groove is formed in the rear side of the pushing plate and close to the stretching spring, a limiting spring is fixedly connected to the upper wall of the spring groove, and an L-shaped guide rod is fixedly connected to the bottom end of the limiting spring; one side of the guide rod connected with the limiting spring is perpendicular to the pushing plate, and the other side of the guide rod extends out of the right side of the hydraulic pusher;

the front part of the right side of the hydraulic pusher is fixedly connected with a guide plate, the right side of the guide plate is a vertical plane, and the left side of the cross section of the guide plate is a hump-shaped curve; the side wall of the guide plate, which is close to the guide rod, is a first inclined surface which is inclined upwards, and the side wall of the guide plate, which is far away from the guide rod, is a second inclined surface which is inclined leftwards;

the shortest distance between the guide plate and the guide rod is smaller than the distance between the pushing plate and the compacting plate; the bottom end of the guide plate is lower than the bottom end of the guide rod, and the top end of the guide plate is higher than the top end of the guide rod.

Further, the number of the vibrators is two, the vibrators are respectively and oppositely distributed on the left side and the right side of the rear wall of the compacting plate, and the two vibrators are jointly connected with the vibration switch.

Compared with the prior art, the invention has the following technical effects:

the coal mine gangue filling and combining tamping mechanism adopts a mode of combining a plurality of tamping power devices in parallel, selects a corresponding number of tamping power devices according to the size of a tamping region, and ensures that all positions of the tamping region which need to be filled can be filled with gangue. The compaction power device is used for providing power for the compaction assembly, the compaction assembly is driven to move in the horizontal direction and the vertical direction, meanwhile, the compaction assembly is controlled by the auxiliary compaction assembly to move left and right, and when filling, all parts of a compaction area can be compacted by gangue, so that the problems of uneven filling area and uneven stress of the gangue are avoided. In addition, the vibrating device is added, so that the compacting component vibrates during working, the compactness during filling of the gangue is improved, the gap between the gangue is reduced, the beauty and the safety of the tamped area after the gangue is filled are guaranteed, and the vibrating device is suitable for industrial large-scale use and popularization.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a coal mine waste filling combined tamping mechanism of the invention;

FIG. 2 is a schematic diagram of the tamping power device of the present invention;

FIG. 3 is a schematic view of the tamper power unit of the present invention at another angle;

FIG. 4 is a schematic view of the compaction assembly of the present invention;

FIG. 5 is a schematic illustration of the connection of the compacting assembly, vibrating assembly and auxiliary compacting assembly of the present invention;

FIG. 6 is a schematic top view of the vibratory assembly and auxiliary compaction assembly of the present invention;

FIG. 7 is a schematic illustration of the connection of the pusher plate to the guide bar of the present invention;

fig. 8 is a schematic view of a guide plate structure of the present invention.

The meaning of each reference numeral in the figures is:

1. tamping the power device; 2. a compacting assembly; 3. a vibration assembly; 4. an auxiliary compaction assembly; 5. a mounting frame; 6. a hydraulic telescopic rod; 7. a hydraulic pusher; 8. a fixing plate; 9. a pushing plate; 10. a connecting rod; 11. compacting the plate; 12. a connecting spring; 13. a sliding plate; 14. a second sliding groove; 15. a connecting plate; 16. a bevel board; 17. a lifting plate; 18. a mounting groove; 19. a compression spring; 20. a tension spring; 21. a guide rod; 22. a guide plate;

301. a vibrator; 302. a vibration switch; 501. a top plate; 502. a limit rod; 503. a side plate; 504. a first sliding groove; 505. a first support base; 506. a first hinge sleeve; 507. a second support base; 508. a second hinge sleeve; 901. a limit groove; 902. a limit spring; 2201. a first inclined surface; 2202. and a second inclined plane.

Detailed Description

All the components in the present invention are known in the art unless otherwise specified. For example, a hydraulic pusher is used as the known conventional hydraulic pusher.

The following specific embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solutions of the present application fall within the protection scope of the present invention.

The coal mine waste filling combined tamping mechanism comprises a plurality of tamping power devices 1, a compacting assembly 2, a vibrating assembly 3 and an auxiliary compacting assembly 4; the tamping power devices 1 are arranged in parallel, the front of each tamping power device 1 is provided with a compacting assembly 2, and all compacting assemblies 2 face the same direction.

The tamping power device 1 is used for:

the compacting assembly 2 is powered to move the compacting assembly 2 in both the horizontal and vertical directions.

The compacting assembly 2 is for:

the gangue is compacted under the drive of the tamping power device 1, so that the gangue is uniformly filled into the tamping region.

The vibration assembly 3 is for:

the compaction assembly 2 is driven to vibrate through self vibration, so that the filling efficiency of the compaction assembly 2 is improved.

The auxiliary compaction assembly 4 is for:

lifting the packing coverage area of the compacting assembly 2.

The compacting assembly 2 is driven to move left and right.

The tamping power devices are combined in parallel, and the tamping power devices with the corresponding quantity are selected according to the size of the tamping region, so that the filling positions of the tamping region can be filled with the gangue. The compaction power device is used for providing power for the compaction assembly, the compaction assembly is driven to move in the horizontal direction and the vertical direction, meanwhile, the compaction assembly is controlled by the auxiliary compaction assembly to move left and right, and when filling, all parts of a compaction area can be compacted by gangue, so that the problems of uneven filling area and uneven stress of the gangue are avoided. In addition, the vibrating device is added, so that the compacting component vibrates during working, the compactness during filling of the gangue is improved, the gap between the gangue is reduced, and the beauty and the safety of the tamped area after the gangue is filled are ensured.

Specifically, the number of the tamping power devices 1 is 2 to 3.

As a preferred embodiment, the tamping power device 1 includes a mounting frame 5, and the mounting frame 5 is formed by a rectangular top plate 501 and four side plates 503, and the four side plates 503 are respectively disposed at four corners of the top plate 501.

The lower surface of the top plate 501 is connected with one end of a hydraulic telescopic rod 6, the other end of the hydraulic telescopic rod 6 is connected with the top of a hydraulic pusher 7, an output shaft of the hydraulic pusher 7 is connected with a fixed plate 8, and the compaction assembly 2 is connected to the front of the tamping power device 1 through the fixed plate 8.

When the tamping power device 1 works, the hydraulic pusher 7 is driven to move in the vertical direction through the extension and retraction of the hydraulic telescopic rod 6, and then the compacting assembly 2 is driven to move in the vertical direction.

The output shaft of the hydraulic pusher 7 pushes the fixing plate 8 to move in the horizontal direction, so that the compacting assembly 2 is driven to move in the horizontal direction, and the compacting assembly 2 can cover all the compacting areas through the cooperation of the hydraulic telescopic rod 6 and the hydraulic pusher 7.

Further preferably, the hydraulic telescopic rod 6 is obliquely arranged, and two ends of the hydraulic telescopic rod 6 are respectively and rotatably connected with the top plate 501 and the hydraulic pusher 7.

Limiting rods 503 which can rotate along the circumferential direction of the central axis of the hydraulic pusher 7 are rotatably connected to the left and right side walls of the rear part of the hydraulic pusher 7, and first sliding grooves 504 are formed in corresponding positions of the inner sides of the two side plates 503 at the rear part of the tamping power device 1; the stopper rods 9 can be respectively fitted into the corresponding first slide grooves 504 and slide in the vertical direction along the first slide grooves 504.

Compared with the vertical arrangement, the connecting mode can enable the gangue tamping area to be larger when the equipment is operated, the limiting rod 503 is clamped into the first sliding groove 504 and slides in the first sliding groove 504, the effect of limiting the hydraulic pusher 7 to move in the horizontal direction is achieved, and meanwhile the stability of the equipment in operation can be increased.

Further preferably, the lower surface of the top plate of the mounting frame 5 is fixedly connected with a first supporting seat 505, the inside of the first supporting seat 505 is rotationally connected with a first hinging sleeve 506, and one end of the hydraulic telescopic rod 6 is rotationally connected inside the first hinging sleeve 506; the top of the hydraulic pusher 7 is fixedly connected with a second supporting seat 507, the second supporting seat 507 is rotationally connected with a second hinging sleeve 508, and the other end of the hydraulic telescopic rod 6 is rotationally connected inside the second hinging sleeve 508. This arrangement can strengthen the connection strength between the two ends of the hydraulic expansion link 6 and the corresponding components.

As a preferred option, the compacting assembly 2 comprises a push plate 9 connected to a fixed plate 8.

Two sides of the pushing plate 9 are provided with horizontally through mounting holes relatively, and a connecting rod 10 is slidably arranged in each mounting hole; one end of the connecting rod 10 extends out of the corresponding mounting hole, and the other end is fixedly connected with the compacting plate 11; each connecting rod 10 is sleeved with a connecting spring 12, and the connecting springs 12 are positioned between the pushing plate 9 and the compacting plate 11.

During operation, the output shaft of the hydraulic pusher 7 pushes the fixed plate 8, and then the fixed plate 8 drives the pushing plate 9 to move, at the moment, the connecting spring 12 receives compressed force, the reaction force of the connecting spring 12 pushes the compacting plate 11, and the compacting plate 11 compacts the gangue.

As a preferred solution, the vibration assembly 3 comprises at least one vibrator 301, the vibrator 301 being arranged on the rear wall of the compacting plate 11, the vibrator 301 being controlled to be turned on and off by a vibration switch 302.

When the whole device is operated, the vibration switch 302 is turned on to start the vibrator 301, and the vibrator 301 is turned off after the tamping is completed.

As a preferred option, the auxiliary compacting assembly 4 comprises a sliding plate 13.

The front wall of the compacting plate 11 is provided with a second sliding groove 14, and the sliding plate 13 is clamped inside the second sliding groove 14 and can slide along the second sliding groove 14 in the vertical direction.

The rear wall of the pushing plate 9 is fixedly connected with a connecting plate 15, and the top end of the connecting plate 15 is fixedly connected with a vertically arranged inclined side plate 16; the top of the sliding plate 13 is fixedly connected with a lifting plate 17; the bevel plate 16 and the lifting plate 17 are on the same plane in the vertical direction; the sloping edge of the sloping edge plate 16 faces the lifting plate 17.

The bottom end of the bevel plate 16 is lower than the bottom end of the lifting plate 17, and the top end of the bevel plate 16 is higher than the top end of the lifting plate 17; the shortest distance between the bevel plate 16 and the lifting plate 17 is smaller than the distance between the pusher plate 9 and the compacting plate 11.

When the pushing plate 9 is pushed forward, the compacting plate 11 is static against the gangue pile, the inclined plate 16 gradually approaches the lifting plate 17, finally the lifting plate 17 is jacked up through the inclined edge, the lifting plate 17 gradually upwards along the inclined edge of the inclined plate 16, the sliding plate 13 is driven to upwards, and the compacting area of the compacting assembly 2 is improved.

In the process, after the compacting plate 11 and the sliding plate 13 are just propped against the gangue pile, the reaction force of the gangue pile to the gangue pile is small, the sliding plate 13 can be lifted out from the second sliding groove 14 of the compacting plate 11, and the distance between the bevel plate 16 and the lifting plate 17 is designed according to actual needs, so that the working requirements are met.

As a preferred solution, the auxiliary compacting assembly 4 further comprises a mounting groove 18 provided in the upper wall of the fixing plate 8; the pushing plate 9 enters the mounting groove 18 and contacts the bottom of the mounting groove 18, and the left side and the right side of the pushing plate 9 are fixedly connected with the inner walls of the left side and the right side of the mounting groove 18 through the compression spring 19 and the extension spring 20 respectively.

A limit groove 901 is formed in the rear side of the pushing plate 9 and close to the tension spring 20, a limit spring 902 is fixedly connected to the upper wall of the spring groove 901, and an L-shaped guide rod 21 is fixedly connected to the bottom end of the limit spring 902; one side of the guide rod 21 connected with the limit spring 902 is perpendicular to the pushing plate 9, and the other side extends out of the right side of the hydraulic pusher 7.

The front part of the right side of the hydraulic pusher 7 is fixedly connected with a guide plate 22, the right side of the guide plate 22 is a plane which is flush with the end face of the other side of the hydraulic pusher 7, and the left side of the cross section of the guide plate 22 is a hump-shaped curve; the side wall of the guide plate 22 on the side close to the guide rod 21 is a first inclined surface 2201 inclined upward, and the side wall of the guide plate 22 on the side far from the guide rod 21 is a second inclined surface 2202 inclined leftward.

The shortest distance between the guide plate 22 and the guide rod 21 is smaller than the distance between the pushing plate 9 and the compacting plate 11; the bottom end of the guide plate 22 is lower than the bottom end of the guide rod 21, and the top end of the guide plate 22 is higher than the top end of the guide rod 21.

The output shaft of the hydraulic pusher 7 pushes the fixed plate 8, and thus the pushing plate 9 is pushed forward, the guide bar 21 enters from the first inclined surface 2201 above the guide plate 22, and at this time the limit spring 902 is compressed, so that the guide bar 21 can move upward.

When the guide bar 21 moves to the front of the guide plate 22, the limit spring 902 returns, and the guide bar 21 falls down while entering the hump portion of the guide plate 22 from the second slope 2202. At this time, the output shaft of the hydraulic pusher 7 is recovered, the pushing plate 9 is driven to recover, and the guide rod 21 moves along the hump portion in a roundabout manner under the action of the compression spring 19 and the extension spring 20, so that the tamping region is further ground in the tamping process of the coal mine gangue, the range of the grinding tamping region can be further increased, and the leveling efficiency of the tamping region can be further improved.

As a preferable scheme, the number of the vibrators 301 is two, the vibrators 301 are respectively and relatively distributed on the left side and the right side of the rear wall of the compacting plate 11, and the two vibrators 301 are jointly connected with the vibration switch 302 to improve compacting efficiency.

Claims

1. The coal mine waste filling combined tamping mechanism is characterized by comprising a plurality of tamping power devices (1), a tamping assembly (2), a vibrating assembly (3) and an auxiliary tamping assembly (4); the tamping power devices (1) are arranged in parallel, a group of compacting assemblies (2) are correspondingly arranged in front of each tamping power device (1), and all the compacting assemblies (2) face the same direction;

the tamping power device (1) is used for:

the compaction assembly (2) is driven to move in the horizontal direction and the vertical direction;

the compaction assembly (2) is used for:

the gangue is compacted by moving in the horizontal and vertical directions under the driving of the tamping power device (1), so that the gangue is uniformly filled into the goaf;

the vibration assembly (3) is used for:

the compaction assembly (2) is driven to vibrate through self vibration;

the auxiliary compaction assembly (4) is used for:

increasing the filling coverage area of the compacting assembly (2);

the compacting assembly (2) is moved left and right.

2. The coal mine waste filling combination tamping mechanism according to claim 1, wherein the number of the tamping power devices (1) is 2-3.

3. The combined tamping mechanism for filling coal mine gangue as claimed in claim 1, wherein the tamping power device (1) comprises a mounting frame (5), the mounting frame (5) comprises a rectangular top plate (501) and four side plates (503), and the four side plates (503) are respectively arranged at four corners of the top plate (501);

the hydraulic tamping device is characterized in that the lower surface of the top plate (501) is connected with one end of a hydraulic telescopic rod (6), the other end of the hydraulic telescopic rod (6) is connected with the top of a hydraulic pusher (7), an output shaft of the hydraulic pusher (7) is connected with a fixed plate (8), and the compacting assembly (2) is connected to the front of the tamping power device (1) through the fixed plate (8).

4. A coal mine waste filling combined tamping mechanism as claimed in claim 3, characterized in that the hydraulic telescopic rod (6) is obliquely arranged, and two ends of the hydraulic telescopic rod (6) are respectively and rotatably connected with the top plate (501) and the hydraulic pusher (7);

limiting rods (503) capable of rotating along the circumferential direction of a central shaft of the hydraulic pusher (7) are rotatably connected to the left and right side walls of the rear part of the hydraulic pusher, and first sliding grooves (504) are formed in corresponding positions inside two side plates (503) at the rear part of the tamping power device (1); the limiting rods (9) can be respectively clamped into the corresponding first sliding grooves (504) and slide along the first sliding grooves (504) in the vertical direction.

5. The coal mine gangue filling combined tamping mechanism according to claim 4, wherein a first supporting seat (505) is fixedly connected to the lower surface of a top plate of the mounting frame (5), a first hinge sleeve (506) is rotatably connected to the inside of the first supporting seat (505), and one end of the hydraulic telescopic rod (6) is rotatably connected to the inside of the first hinge sleeve (506);

the hydraulic pusher (7) top fixedly connected with second supporting seat (507), second supporting seat (507) rotate and be connected with second articulated cover (508), hydraulic telescoping rod (6) other end rotate and connect in second articulated cover (508) inside.

6. A mine waste filling combination tamping mechanism as claimed in claim 3, wherein the compacting assembly (2) comprises a pusher plate (9) connected to the fixed plate (8);

the left side and the right side of the pushing plate (9) are provided with mounting holes which are penetrated horizontally, and a connecting rod (10) is slidably arranged in each mounting hole; the compaction assembly (2) further comprises a compaction plate (11), one end of the connecting rod (10) extends out of the corresponding mounting hole, and the other end of the connecting rod is fixedly connected with the compaction plate (11); each connecting rod (10) is sleeved with a connecting spring (12), and the connecting springs (12) are positioned between the pushing plate (9) and the compacting plate (11).

7. The coal mine waste filling combined tamping mechanism according to claim 6, wherein the vibrating assembly (3) comprises at least one vibrator (301), the vibrator (301) is arranged on the rear wall of the compacting plate (11), and the opening and closing of the vibrator (301) are controlled through a vibrating switch (302).

8. The mine waste filling combination tamping mechanism of claim 6, wherein said auxiliary compacting assembly (4) comprises a sliding plate (13);

the front wall of the compacting plate (11) is provided with a second sliding groove (14), and the sliding plate (13) is clamped in the second sliding groove (14) and can slide along the second sliding groove (14) in the vertical direction;

the rear wall of the pushing plate (9) is fixedly connected with a connecting plate (15), and the top end of the connecting plate (15) is fixedly connected with a vertically arranged bevel plate (16); the top of the sliding plate (13) is fixedly connected with a horizontal lifting plate (17); the bevel edge plate (16) and the lifting plate (17) are positioned in the same vertical plane; the bevel edge of the bevel edge plate (16) faces the lifting plate (17);

the bottom end of the bevel plate (16) is lower than the bottom end of the lifting plate (17), and the top end of the bevel plate (16) is higher than the top end of the lifting plate (17); the shortest distance between the bevel plate (16) and the lifting plate (17) is smaller than the distance between the pushing plate (9) and the compacting plate (11).

9. The coal mine waste filling combined tamping mechanism according to claim 8, wherein the auxiliary tamping assembly (4) further comprises a mounting groove (18) formed on the upper wall of the fixing plate (8); the pushing plate (9) enters the mounting groove (18) and contacts the bottom of the mounting groove (18), and the left side and the right side of the pushing plate (9) are fixedly connected with the inner walls of the left side and the right side of the mounting groove (18) through the compression spring (19) and the extension spring (20) respectively; the pushing plate (9) can horizontally slide in the mounting groove (18);

a limit groove (901) is formed in the rear side of the pushing plate (9) close to the tension spring (20), a limit spring (902) is fixedly connected to the upper wall of the spring groove (901), and an L-shaped guide rod (21) is fixedly connected to the bottom end of the limit spring (902); one side of the guide rod (21) connected with the limit spring (902) is vertical to the pushing plate (9), and the other side extends out of the right side of the hydraulic pusher (7);

the front part of the right side of the hydraulic pusher (7) is fixedly connected with a guide plate (22), the right side of the guide plate (22) is a vertical plane, and the left side of the cross section of the guide plate (22) is a hump-shaped curve; the side wall of the guide plate (22) close to the guide rod (21) is a first inclined surface (2201) inclined upwards, and the side wall of the guide plate (22) far away from the guide rod (21) is a second inclined surface (2202) inclined leftwards;

the shortest distance between the guide plate (22) and the guide rod (21) is smaller than the distance between the pushing plate (9) and the compacting plate (11); the bottom end of the guide plate (22) is lower than the bottom end of the guide rod (21), and the top end of the guide plate (22) is higher than the top end of the guide rod (21).

10. The coal mine waste filling combined tamping mechanism according to claim 7, wherein the number of the vibrators (301) is two, the vibrators are respectively and oppositely distributed on the left side and the right side of the rear wall of the compacting plate (11), and the vibrators (301) are commonly connected with the vibrating switch (302).